michaelh/zephyr
1
0
Fork 0
Code Releases Activity

espi: mec172x: kbc0_ibf_isr: read sts before data

Browse source 
Read KBC Status register before reading KBC Data register
in kbc0_ibf_isr; since read data will clear status.

Signed-off-by: Jay Vasanth <jay.vasanth@microchip.com>
This commit is contained in:
Jay Vasanth 2022-03-08 10:16:08 -05:00 • committed by Maureen Helm
commit b530be4591
1 changed files with 3 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

6
drivers/espi/espi_mchp_xec_host_v2.c
View file

@ -196,9 +196,9 @@ static void kbc0_ibf_isr(const struct device *dev)
* and the lower byte speficies if the host sent
* a command or data. 1 = Command.
*/
uint32_t isr_data = ((kbc_hw->EC_DATA & 0xFF) << E8042_ISR_DATA_POS) |
((kbc_hw->EC_KBC_STS & MCHP_KBC_STS_CD) <<
E8042_ISR_CMD_DATA_POS);
uint32_t isr_data = ((kbc_hw->EC_KBC_STS & MCHP_KBC_STS_CD) <<
E8042_ISR_CMD_DATA_POS);
isr_data |= ((kbc_hw->EC_DATA & 0xFF) << E8042_ISR_DATA_POS);
struct espi_event evt = {
.evt_type = ESPI_BUS_PERIPHERAL_NOTIFICATION,